Color display device using light shutter and color filters

Details Color display device using light shutter and color filters Color display device using light shutter and color filters

1987-04-08

1989-09-26

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

340784, 350339F, 350345, 358236, H04N 930, H04N 566, G02F 113, G09G 336

Patent

active

048704849

ABSTRACT:
A color display device particularly adapted for use in flat panel applications provides a bright picture with high saturation and excellent color reproduction. The color display device includes a light shutter mechanism which controls the amount of light passing therethrough. Color filters of different colors are disposed adjacent to the light shutter mechanism and include a plurality of color elements. Each color filter has a peak at the transmittance spectrum thereof. A light source illuminates the light shutter mechanism with the light source having peaks in a luminance spectrum adjusted to correspond to the peaks of the transmittance spectrum of each color filter.

REFERENCES:
patent: 2925532 (1960-02-01), Larach
patent: 3840695 (1974-10-01), Fischer
patent: 4011001 (1977-03-01), Moriya
patent: 4183628 (1980-01-01), Laesser et al.
A. G. Fischer, "Progress Toward TFT-Addressed TNLC Flat-Panel Color Television", Nonemissive Electrooptic Displays, Plenum Press, 1976, pp. 342-348.
J. C. Wood, "Optimized Wedge Illuminator for a Liquid-Filled Passive Display", IBM Technical Disclosure Bulletin, vol. 24, No. 11A, Apr. 1982, pp. 5368-5370.

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